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Ameralloy-5 is formulated primarily for use in pneumatic and shock tools, and well suited to shock resistant parts in which a combination of great ductility and hardness is required. Carbon tool steels under Rockwell C 60 cannot compare in shock resistance to the alloyed grades. Ameralloy-5 is normally oil-quenched, particularly when machining intricate parts using Ameralloy-5.
Quenching in water produces satisfactory results, but additional care should be taken if the part has drastic sectional changes or sharp corners.
Maximum shock resistance for hardness in the range of Rockwell C 58–60
Good wear resistance
Oil and water hardening
Forging Heat Ameralloy-5 to 1850°–1950°F and do not forge below 1650°F. Ameralloy-5 is subject to decarburization, and therefore should not be held at the forging temperature longer than necessary. After forging, the steel should be cooled slowly in a heat-insulating material such as dry ashes, dry lime, or vermiculite.
Forging 1850°–1950°F, stop at 1650°F
Annealing 1450°F, furnace-cool. Brinell 229 max.
Hardening 1600°F, oil-quench or water-quench
Tempering 400°– 650°F, average hardness after heat treatment Rockwell C 57–61
Annealing Pack-annealing in sealed containers using inert material is preferable because of the decarburization tendency of this steel. Otherwise, controlled-atmosphere furnaces may be used. Heat slowly to 1450°F, and hold for 1 hour per inch of greatest thickness. To obtain optimal machining properties, Ameralloy-5 should be cooled slowly to 1000°F. Careful annealing should result in a hardness of Brinell 229 max.
Hardening Ameralloy-5 is primarily an oil hardening grade, However, satisfactory results can be achieved with water-quenching when the design is not too intricate. Hardening temperature for both oil- and water-quenching is 1600°F. Holding time at hardening heat should be just sufficient for uniformity of temperature. Holding time should not exceed 1/2 hour per inch of greatest thickness because of the danger of excessive decarburization. Temper immediately after quenching.
OIL-QUENCH | WATER-QUENCH | |||
---|---|---|---|---|
Quenching Temperature (°F) | Fracture Grain Size | Rockwell C | Fracture Grain Size | Rockwell C |
1450- | 8 | 49 | 8 | 51 |
1500- | 9½ | 55 | 9 | 59 |
1550- | 9½ | 61 | 9½ | 64 |
1600- | 9½ | 64 | 9½ | 65 |
1650- | 9 | 63 | 9½ | 65 |
Tempering Temperature should range between 400°–650°F, depending on the service desired. Normal tempering procedure for Ameralloy-5 is to hold at temperature for at least 2 hours per inch of greatest thickness.
Resulting Rockwell hardness for tempering oil- and water-quenched 3/4” dia. specimens at various temperatures
Tempering Temperature (°F | 1600°F Oil-Quench Rockwell C | 1600°F Water-Quench Rockwell C |
---|---|---|
300° | 63 | 63 |
400° | 61 | 61 |
500° | 60.5 | 60 |
600° | 59 | 59 |
700° | 57.5 | 57.5 |
800° | 53 | 53.5 |
900° | 51 | 51 |
1000° | 49 | 48 |
1100° | 47 | 45 |
1200° | 40.5 | 40 |
1300° | 33.5 | 33 |
Standard lengths 10′-12′ R/L lengths. Other sizes available upon request. Prompt forging service also available.
1/4 | 1 | 2 | 3 | 4 |
5/16 | 1-1/8 | 2-1/8 | 3-1/4 | 4-1/4 |
3/8 | 1-1/4 | 2-1/4 | 3-1/2 | 4-1/2 |
7/16 | 1-3/8 | 2-1/2 | 3-3/4 | 4-3/4 |
1/2 | 1-1/2 | 2-3/4 | 5 | |
5/8 | 1-5/8 | 5-1/8 | ||
3/4 | 1-3/4 | 6 | ||
7/8 | 1-7/8 |
Squares | Octagons | ||
---|---|---|---|
3/8 1/2 5/8 3/4 1 1-1/4 1-3/8 1-1/2 1-3/4 |
2 2-1/2 3 4 |
1/4 3/8 7/16 1/2 5/8 3/4 7/8 |
1 1-1/8 1-1/4 |
Hexagons | Billets | ||
---|---|---|---|
3/8 1/2 5/8 3/4 7/8 |
1 1-1/8 1-1/4 1-1/2 |
1/4 3/8 7/16 1/2 5/8 3/4 7/8 |
Round Cornered Square 4 6 8 10 |
3/8 x 1 x 1-1/2 x 2 x 5 1/2 x 5/8 x 1 x 1-1/2 x 2 x 2-1/2 x 3 x 6 3/4 x 1 x 1-1/2 x 2 |
x 2-1/2 x 3 x 4 x 5 1 x 1-1/2 x 2 x 2-1/2 x 3 x 3-1/2 x 4 x 4-1/2 x 5 x 6 1-1/4 x 1-1/2 x 2 |
x 2-1/2 x 3 x 4 x 5 x 6 1-1/2 x 2 x 2-1/2 x 3 x 3-1/2 x 4 x 4-1/2 x 5 x 5-1/2 x 6 1-3/4 x 4 |
x 4-1/2 x 5 x 6 2 x 2-1/2 x 3 x 4 x 4-1/2 x 5 x 6 x 8 2-1/2 x 3 x 4 x 4-1/2 x 5 x 6 |
3 x 4 x 4-1/2 x 5 x 6 x 7 x 8 3-1/2 x 4 x 5 x 6 4 x 4-1/2 x 5 x 6 x 7 x 8 |
Not sure what you are looking for? Contact Ameralloy Steel an ISO 9001 certified supplier that specializes in finding hard-to-find Stainless and Alloys. Along with our proprietary grades Amera-Braze, Durelloy, and Dura-Krome. Our knowledgeable sales team will help you find what you are looking for. With many shapes, sizes, and material grades available, we can help you find what you are looking for. The most common items stocked are Tube, Pipe, Sheet, Plate, Hex bar, Square bar, Round bar, Threaded bar, Pump Shaft, and Millimeter sizes. We offer added fabrication services. Contact us now for the current price and delivery.